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VDE - German association for electrotechnics, electronics and information technologies was founded as early as 1893. It supports modern education for professionals and high acceptance by people. It supports development of electrotechnics, electronics and information technologies and related technologies.
The main task of the association lies in safety in electrotechnics, elaboration of respected technical rules such as national and international standards, tests and certification of equipment and systems.
American version of VDE standards is marked as UL standard (Underwriters Laboratories).
VDE 0550-1. Specifications for small transformers; General requirements.
(VDE 0550-1. Bestimmungen für Kleintransformatoren; Teil 1: Allgemeine Bestimmungen.)
WITHDRAWN published on 1.12.1969
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VDE 0550-1. Separating transformers, autotransformers, variable transformers and reactors; identical with IEC 14D(Central Office)29.
(VDE 0550-1. Netztransformatoren, Spartransformatoren, Stelltransformatoren und Drosselspulen.)
WITHDRAWN published on 1.11.1987
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VDE 0550-3. Specifications for small transformers; Part 3: Particular requirements for isolating and control transformers as well as for mains-supply and insulating transformers above 1000 V.
(VDE 0550-3. Bestimmungen für Kleintransformatoren; Teil 3: Besondere Bestimmungen für Trenn- und Steuertransformatoren sowie Netzanschluß- und Isoliertransformatoren über 1000 V.)
WITHDRAWN published on 1.12.1969
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VDE 0550-4. Specifications for small transformers; Particular requirements for autotransformers.
(VDE 0550-4. Bestimmungen für Kleintransformatoren; Teil 4: Besondere Bestimmungen für Spartransformatoren.)
WITHDRAWN published on 1.4.1966
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VDE 0550-4/A1. Small transformers; special requirements for autotransformers; amendment 1.
(VDE 0550-4/A1. Kleintransformatoren; Besondere Bestimmungen für Spartransformatoren; Änderung 1.)
WITHDRAWN published on 1.6.1990
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VDE 0550-4/A1. Small transformers; special requirements for autotransformers; amendment 1.
(VDE 0550-4/A1. Kleintransformatoren; Besondere Bestimmungen für Spartransformatoren; Änderung 1.)
WITHDRAWN published on 1.12.1992
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VDE 0550-5. Specifications for small transformers; Particular requirements for ignition transformers.
(VDE 0550-5. Bestimmungen für Kleintransformatoren - Teil 5: Besondere Bestimmungen für Zündtransformatoren.)
WITHDRAWN published on 1.9.1972
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VDE 0550-6. Regulations for small transformers; part 6: Special regulations for chokes (ripple filter chokes, premagnetized chokes and radio interference suppression chokes).
(VDE 0550-6. Bestimmungen für Kleintransformatoren; Teil 6: Besondere Bestimmungen für Drosseln (Netzdrosseln, vormagnetisierte Drosseln und Funk-Entstördrosseln).)
WITHDRAWN published on 1.4.1966
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VDE 0551-1. Isolating transformated safety isolating transformers; requirements;.
(VDE 0551-1. Trenntransformatoren und Sicherheitstransformatoren; Anforderungen;.)
WITHDRAWN published on 1.9.1989
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VDE 0551. Specifications for safety isolating transformers.
(VDE 0551. Bestimmungen für Sicherheitstransformatoren.)
WITHDRAWN published on 1.5.1972
Selected format:Latest update: 2026-06-24 (Number of items: 2 284 377)
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